Stellar Is Making Every Wallet Future-Proof Against Quantum Computers
A Threat That Used to Feel Far Away
Quantum computing once felt like a problem for future generations. Not anymore. Scientists at INRIA recently cut their estimate of the computing power needed to break standard blockchain encryption by 44%. That pushes the threat closer than the industry expected. Stellar saw this coming and responded with a concrete plan, not a research paper.
What the Quantum Preparedness Plan Actually Does
The Stellar Development Foundation launched the Quantum Preparedness Plan, or QPP, on June 9, 2026. The goal is simple: by end of 2027, every Stellar account will support a quantum-safe signer. Your address stays the same. Your full transaction history stays intact. No migrations, no disruptions. Stellar has always kept account identity separate from signing keys, and that design choice is what makes this smooth upgrade possible.
Three Stages, One Clear Direction
The QPP rolls out in three stages. Stage 1 arrives in 2026 and adds post-quantum signature support to Soroban, Stellar’s smart contract platform. It uses ML-DSA-44 and ML-DSA-65, both finalized by the US National Institute of Standards and Technology in 2024. Enterprise wallets can start migrating to quantum-safe contract accounts this year. Stage 2 follows in 2027, bringing native quantum-safe signer types to every regular account through a protocol update. Finally, Stage 3 will eventually retire the current Ed25519 signature scheme, though Stellar has not yet set a firm date for that step.
How Stellar Compares to the Rest
No other major blockchain has published anything this structured. Ethereum is still at the research stage on quantum resistance. Bitcoin’s community largely argues the threat is too distant to act on now. Stellar, by contrast, has aligned its roadmap with guidance from the Bank for International Settlements, which published its own quantum readiness framework for financial systems. That institutional alignment matters. It signals that Stellar is thinking in decades, not just market cycles.
What This Means for You
Here is the good news for everyday users: you probably will not notice a thing. You keep your wallet address. You keep your history. When your wallet adds support for the new signer type, you opt in and you are protected. Overall, the upgrade works around you, not over you. The Lumexo wallet offers easy, fast trading across the Stellar ecosystem, so you can keep moving while the network upgrades around you. >lumexo.io
Sources
- Introducing the Quantum Preparedness Plan — Stellar Development Foundation
- Stellar Reveals Its Strategy for a Post-Quantum Blockchain Era — Crypto Times
- A Quantum Clock Is Ticking for Bitcoin and Crypto — Decrypt
- Is Stellar XLM Going Quantum-Resistant? — Blockonomi